Prosecutors say Amine al-Khalifi is a flight risk, and will argue bail be denied for the 29-year-old. The Khalifi case is another example of would-be attackers considering U.S. military targets. While settling on Capitol Hill for his suicide attack, the FBI says Khalifi first considered attacks on synagogues and a D.C. restaurant frequented by members of the military.

In the last four months, two terror suspects have eyed military targets.